New coronavirus infection, hemostasis and heparin dosing problems: It is important to say now: 616-005.6:616.151.5
Тромбоз, гемостаз и реология

Tromboz, Gemostaz I Reologiya
scientific and practical journal

ISSN 2078–1008 (Print); ISSN 2687-1483 (online)

Keywords

hemostasis
COVID-19-associated coagulopathy
fibrinogen
low molecular weight heparins

Abstract

In the absence of a sufficient base of evidence-based medicine, the most valuable becomes the expert’s opinion as a mirror of both personal and collegial experience. COVID-19-associated coagulopathy has a character of a thromboinflammation. The heparins — unfractionated or mainly low molecular weight heparins (LMWH) are intended to overcome it, since heparins have not only an anticoagulant effect but both an indirect and direct anti-inflammatory effects as well. So that LMWH are indicated for all in-hospital patients. Patients with COVID-19, especially in severe cases, require laboratory testing of platelet count, D-dimer, prothrombin ratio or prothrombin percents by Quick and fibrinogen. Data analysis showed that a feature of coronavirus hemostasis is hyperfibrinogenemia that becomes an overt factor for heparin resistance. To overcome the latter, an adjusting doses of LMWH toward intermediate or therapeutic looks like a promising way. The sufficiency of the adjusted LMWH dose is appropriate determining either with anti-Xa activity or thromboelastographically as express testing.

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